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CN116181765A - Composite rod piece and manufacturing method thereof - Google Patents

Composite rod piece and manufacturing method thereof Download PDF

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Publication number
CN116181765A
CN116181765A CN202211467127.5A CN202211467127A CN116181765A CN 116181765 A CN116181765 A CN 116181765A CN 202211467127 A CN202211467127 A CN 202211467127A CN 116181765 A CN116181765 A CN 116181765A
Authority
CN
China
Prior art keywords
nested
composite
wall
connecting part
composite material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211467127.5A
Other languages
Chinese (zh)
Inventor
胡大虎
王瑞军
尚文龙
熊志
陆恒
宋智敏
汪田
杨志平
汤云溪
郑耀文
王镇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Harzone Industry Corp Ltd
Original Assignee
China Harzone Industry Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Harzone Industry Corp Ltd filed Critical China Harzone Industry Corp Ltd
Priority to CN202211467127.5A priority Critical patent/CN116181765A/en
Publication of CN116181765A publication Critical patent/CN116181765A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/87—Auxiliary operations or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The embodiment of the application provides a composite rod piece and a manufacturing method thereof, wherein the composite rod piece comprises the following steps: metal joints, embedded pipes and composite material layers; wherein: the end part of the nested pipe is provided with a nested connecting part, the inner wall of the nested connecting part is provided with internal threads, and the outer wall of the nested connecting part is provided with a groove structure; the end part of the metal joint is provided with a screwing part, the outer wall of the screwing part is at least partially provided with external threads, the screwing part is fixedly connected with the internal threads of the nested connecting part through the external threads, and the outer wall of the screwing part is at least partially exposed at the side of the nested connecting part close to the metal joint; the composite material layer coats the embedded pipe and the embedded connecting part, and coats the outer wall of the screwing part exposed at the side of the embedded connecting part near the metal joint; the bearing capacity between the composite material and the metal joint can be increased compared with the prior art.

Description

Composite rod piece and manufacturing method thereof
Technical Field
The application relates to the technical field of mechanical structures, in particular to a composite material rod piece and a manufacturing method thereof.
Background
The composite material is mainly applied to the aerospace industry, the automobile industry, the textile industry and the mechanical manufacturing industry due to the characteristics of light weight and high strength, the application of the composite material in wind power equipment in recent years also develops rapidly, the stress characteristic is mainly a plate unit, the connection mode is usually riveting and gluing, and the connection performance requirement is not high. In the field of emergency bridges, structural connection is a key technology of equipment, the problem that the traditional connection mode has the incompatibility of cementing deformation and mechanical connection deformation, the shearing damage easily occurs at the joint of a composite pipe and a rivet, the bearing capacity and the use safety of the equipment are directly affected, and the requirement of the connection performance of an emergency bridge rod piece cannot be met.
Disclosure of Invention
The embodiment of the application provides a composite material rod piece and a manufacturing method thereof.
In a first aspect, embodiments of the present application provide a composite rod comprising: metal joints, embedded pipes and composite material layers; wherein:
the end part of the nested pipe is provided with a nested connecting part, the inner wall of the nested connecting part is provided with an internal thread, and the outer wall of the nested connecting part is provided with a groove structure;
the end part of the metal joint is provided with a screwing part, the outer wall of the screwing part is at least partially provided with external threads, the screwing part is fixedly connected with the internal threads of the nested connecting part through the external threads, and the outer wall of the screwing part is at least partially exposed at the side of the nested connecting part near the metal joint;
the composite material layer coats the nested pipe and the nested connecting part, and coats the outer wall of the screwing part exposed at the side of the nested connecting part near the metal joint.
In some alternative embodiments, the nested connection and the nested tubes are of unitary construction.
In some alternative embodiments, the composite layer and the exposed outer wall of the screwing portion on the side of the nesting connection portion near the metal joint are connected by an adhesive.
In some alternative embodiments, the groove structure comprises at least two axially distributed annular grooves with protrusions on both sides of the annular grooves, the protrusions protruding relative to the outer wall of the nested tubes.
In some alternative embodiments, the composite layer comprises a first layer composite tube and a second layer composite tube;
the first layer of composite material pipe covers the outer wall of the embedded pipe and abuts against the protrusion at one end of the groove structure, and the end part of the protrusion is coplanar with the surface of the first layer of composite material pipe;
the second layer of composite material pipe is used for coating the first composite material pipe, and coating the outer walls of the nested connecting parts and the screwing parts, which are exposed at the sides of the nested connecting parts near the metal joint.
In some alternative embodiments, the thickness of the second composite tube at the location corresponding to the annular groove matches the annular groove.
In some alternative embodiments, the second composite tube includes at least one layer of axial composite material and at least one layer of circumferential composite material disposed in correspondence of the annular groove, the axial composite material and the circumferential composite material being alternately disposed.
In some alternative embodiments, the outer diameter of the composite layer is greater than the outer diameter of the nested tubes by more than 6 millimeters, and the outer diameter of the first composite tube is greater than the outer diameter of the nested tubes by more than 2 millimeters.
In some alternative embodiments, the material of the composite layer comprises a carbon fiber composite.
In a second aspect, embodiments of the present application provide a method for manufacturing a composite rod, including:
providing a sleeve, wherein a nested connecting part is arranged at the end part of the sleeve, an inner thread is arranged on the inner wall of the nested connecting part, and a groove structure is arranged on the outer wall of the nested connecting part;
a composite material layer is arranged on the surface of the nested pipe, and the composite material layer covers the nested pipe and the nested connecting part and is at least partially positioned on one side of the end part of the nested connecting part;
providing a metal joint, wherein the end part of the metal joint is provided with a screwing part, and the outer wall of the screwing part is at least partially provided with external threads;
and (3) tightly connecting the external threads of the screwing part with the internal threads of the nested connecting part, wherein the outer wall of the screwing part is at least partially exposed at the side of the nested connecting part near the metal joint and is covered by the composite material layer.
In the composite rod member and the manufacturing method thereof provided in the embodiments of the present application, by designing the composite rod member, the method includes: metal joints, embedded pipes and composite material layers; wherein: the end part of the nested pipe is provided with a nested connecting part, the inner wall of the nested connecting part is provided with internal threads, and the outer wall of the nested connecting part is provided with a groove structure; the end part of the metal joint is provided with a screwing part, the outer wall of the screwing part is at least partially provided with external threads, the screwing part is fixedly connected with the internal threads of the nested connecting part through the external threads, and the outer wall of the screwing part is at least partially exposed at the side of the nested connecting part close to the metal joint; the composite material layer coats the embedded pipe and the embedded connecting part, and coats the outer wall of the screwing part exposed at the side of the embedded connecting part near the metal joint; the bearing capacity between the composite material and the metal joint can be increased compared with the prior art.
Drawings
The drawings illustrate generally, by way of example and not by way of limitation, various embodiments discussed herein.
FIG. 1 is a schematic cross-sectional view of a composite rod according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of a nested connection;
FIG. 3 is a schematic cross-sectional view of one of the composite rod members of the present embodiments;
FIG. 4 is a schematic cross-sectional view of a composite rod member according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a partial structure corresponding to the dotted line portion in FIG. 4;
fig. 6 is a schematic partial structure of a second layer composite tube.
Symbol description:
11-metal joints; 12-embedding a sleeve; 13-a composite layer; 14-a nested connection; 15-a screwing part; 16-internal threads; 17-trench structure; 18-an annular groove; 19-bulge; 20-a first layer composite tube; 21-a second layer composite tube; 22-axial composite material; 23-circumferential composite material; 24-external threads.
Detailed Description
For a more complete understanding of the features and technical content of the embodiments of the present application, reference should be made to the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings, which are for purposes of illustration only and not intended to limit the embodiments of the present application.
In the description of the embodiments of the present application, it should be noted that, unless otherwise stated and defined, the term "connected" should be interpreted broadly, for example, the term may be used to indicate that two elements are connected internally, directly, or indirectly through an intermediate medium, and it will be understood by those skilled in the art that the specific meaning of the term is defined in specific cases.
It should be noted that, the term "first\second\third" in the embodiments of the present application is merely to distinguish similar objects, and does not represent a specific order for the objects, it is to be understood that "first\second\third" may interchange a specific order or sequence where allowed. It is to be understood that the "first\second\third" distinguishing objects may be interchanged where appropriate such that the embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
Fig. 1 is a schematic cross-sectional view of a composite rod according to an embodiment of the present application. An embodiment of the present application provides a composite rod, as shown in fig. 1, including: metal joint 11, nested tube 12, composite layer 13.
The end of the nested tube 12 is provided with a nested connection 14, as shown in fig. 2, the inner wall of the nested connection 14 is provided with an internal thread 16, and the outer wall is provided with a groove structure 17.
The end of the metal joint 11 is provided with a screwing part 15, at least part of the outer wall of the screwing part 15 is provided with external threads, the screwing part 15 is fixedly connected with the internal threads of the nested connecting part 14 through the external threads, and at least part of the outer wall of the screwing part 15 is exposed at the side of the nested connecting part near the metal joint 11.
The composite material layer 13 covers the sleeve 12 and the nesting connection portion 14, and covers the outer wall of the screwing portion 15 exposed on the nesting connection portion near the metal joint 11 side.
In some alternative embodiments, the nesting attachment portion 14 and the nesting tube 12 are of unitary construction.
Here, the nested tubes 12 may be, for example, metal tubing, and the nested connection portions 14 may be formed by machining the ends of the metal tubing.
In some alternative embodiments, the composite layer 13 is attached to the exposed outer wall of the nipple 15 on the side of the nesting connection 14 proximate to the metal fitting 11 by an adhesive. Here, the adhesive may include, for example, an epoxy resin.
In some alternative embodiments, the groove structure 17 comprises at least two axially distributed annular grooves 18, the annular grooves 18 having protrusions 19 on both sides, the protrusions 19 protruding relative to the outer wall of the sleeve 12.
In some alternative embodiments, as shown in fig. 3-5, the composite layer 13 includes a first layer of composite tubing 20 and a second layer of composite tubing 21.
As shown in fig. 3, the first layer composite tube 20 wraps around the outer wall of the thimble 12 and abuts the protrusion 19 at one end of the groove structure 17, and the end of the protrusion 19 is coplanar with the surface of the first layer composite tube 20.
By providing the first composite tube 20, the height difference between the end of the protrusion 19 and the outer wall of the nested tube 12 can be filled, so that the surface of the subsequently provided composite material is leveled, and the axial bearing capacity of the subsequently provided composite material is improved.
As shown in fig. 4 and 5, the second composite pipe 21 covers the first composite pipe 20 and covers the outer walls of the nesting connection portion 14 and the screwing portion 15 exposed on the side of the nesting connection portion 14 near the metal joint 11.
In some alternative embodiments, the thickness of the second composite tube 21 at the corresponding annular groove 18 matches the annular groove 18.
In some alternative embodiments, as shown in fig. 6, the second composite tube 21 comprises at least one layer of axial composite material 22 and at least one layer of circumferential composite material 23 disposed at the corresponding annular groove 18, the axial composite material 22 and the circumferential composite material 23 being alternately disposed.
In some alternative embodiments, the outer diameter of the composite layer 13 is greater than 6 millimeters greater than the outer diameter of the nested tubes 12, and the outer diameter of the first composite tube 20 is greater than 2 millimeters greater than the outer diameter of the nested tubes 12.
In some alternative embodiments, the material of the composite layer 13 comprises a carbon fiber composite. The carbon fiber composite material may include carbon cloth and an adhesive, where the specific type of carbon fiber of the carbon cloth may be selected according to actual needs, and the stress bearing direction of the carbon fiber may be correspondingly set according to the specific structure of the composite material layer 13.
Compared with the traditional connection mode, the composite material rod piece can improve the bearing capacity between the composite material and the metal joint. Compared with the traditional connecting mode, the connecting strength of the cross section of the rod piece can be improved by more than 1.7 times through actual manufacturing measurement.
The embodiment of the application provides a manufacturing method of the composite material rod piece, which comprises the following steps:
the nested pipe 12 is provided, the end part of the nested pipe 12 is provided with a nested connecting part 14, the inner wall of the nested connecting part 14 is provided with internal threads, and the outer wall is provided with a groove structure.
A composite material layer 13 is arranged on the surface of the nested pipe 12, and the composite material layer 13 covers the nested pipe 12 and the nested connecting part 14 and is at least partially positioned on one side of the end part of the nested connecting part.
The metal joint 11 is provided, the end of the metal joint 11 is provided with a screwing part 15, and the outer wall of the screwing part 15 is at least partially provided with external threads.
The external thread of the screwing part 15 is fastened and connected corresponding to the internal thread of the nested connecting part 14, and the outer wall of the screwing part 15 is at least partially exposed at the side of the nested connecting part near the metal joint 11 and is covered by the composite material layer 13.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the disclosure. Such as the above features are interchanged with the features disclosed in the present application (but not limited to) having similar functions.

Claims (10)

1. A composite rod, comprising: metal joints, embedded pipes and composite material layers; wherein:
the end part of the nested pipe is provided with a nested connecting part, the inner wall of the nested connecting part is provided with an internal thread, and the outer wall of the nested connecting part is provided with a groove structure;
the end part of the metal joint is provided with a screwing part, the outer wall of the screwing part is at least partially provided with external threads, the screwing part is fixedly connected with the internal threads of the nested connecting part through the external threads, and the outer wall of the screwing part is at least partially exposed at the side of the nested connecting part near the metal joint;
the composite material layer coats the nested pipe and the nested connecting part, and coats the outer wall of the screwing part exposed at the side of the nested connecting part near the metal joint.
2. A composite rod according to claim 1, wherein the nested connection and the nested tubes are of unitary construction.
3. A composite rod according to claim 1, wherein the composite layer is connected to the exposed outer wall of the screwing section on the side of the nesting connection section near the metal joint by means of an adhesive.
4. A composite rod according to claim 1, wherein the channel structure comprises at least two axially distributed annular channels having protrusions on both sides of the annular channels, the protrusions protruding relative to the outer wall of the nested tubes.
5. The composite rod of claim 4 wherein the composite layer comprises a first layer of composite tubing and a second layer of composite tubing;
the first layer of composite material pipe covers the outer wall of the embedded pipe and abuts against the protrusion at one end of the groove structure, and the end part of the protrusion is coplanar with the surface of the first layer of composite material pipe;
the second layer of composite material pipe is used for coating the first composite material pipe, and coating the outer walls of the nested connecting parts and the screwing parts, which are exposed at the sides of the nested connecting parts near the metal joint.
6. The composite rod of claim 5, wherein a thickness of the second composite tube at a location corresponding to the annular groove matches the annular groove.
7. The composite rod of claim 6, wherein the second composite tube comprises at least one layer of axial composite material and at least one layer of circumferential composite material disposed in correspondence of the annular groove, the axial composite material and the circumferential composite material being alternately disposed.
8. The composite rod of claim 7 wherein the outer diameter of the composite layer is greater than the outer diameter of the nested tubes by more than 6 millimeters and the outer diameter of the first composite tube is greater than the outer diameter of the nested tubes by more than 2 millimeters.
9. A composite rod according to any one of claims 1 to 8, wherein the material of the composite layer comprises a carbon fibre composite.
10. A method of manufacturing a composite rod, comprising:
providing a sleeve, wherein a nested connecting part is arranged at the end part of the sleeve, an inner thread is arranged on the inner wall of the nested connecting part, and a groove structure is arranged on the outer wall of the nested connecting part;
a composite material layer is arranged on the surface of the nested pipe, and the composite material layer covers the nested pipe and the nested connecting part and is at least partially positioned on one side of the end part of the nested connecting part;
providing a metal joint, wherein the end part of the metal joint is provided with a screwing part, and the outer wall of the screwing part is at least partially provided with external threads;
and (3) tightly connecting the external threads of the screwing part with the internal threads of the nested connecting part, wherein the outer wall of the screwing part is at least partially exposed at the side of the nested connecting part near the metal joint and is covered by the composite material layer.
CN202211467127.5A 2022-11-22 2022-11-22 Composite rod piece and manufacturing method thereof Pending CN116181765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211467127.5A CN116181765A (en) 2022-11-22 2022-11-22 Composite rod piece and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211467127.5A CN116181765A (en) 2022-11-22 2022-11-22 Composite rod piece and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN116181765A true CN116181765A (en) 2023-05-30

Family

ID=86451259

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211467127.5A Pending CN116181765A (en) 2022-11-22 2022-11-22 Composite rod piece and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN116181765A (en)

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